As I mentioned, I had great success with the 175 gr. duplex. If they don't work for you, pm me and maybe we can work something out. That's the great thing about muzzleloading; no 2 rifles are the same, so you have to do alot of experimenting before you find the right load. Just because one person says a bullet doesn't work, doesn't mean it won't work for you! try the 175's over a starting charge of 85 grains. work up from there. not everyone needs 150 grains of powder. at 90 gr. of rs, at 125 yds right on, 150 2"low, 175 5" low. good luck and keep experimenting!